/* 公共css */
*{
    margin: 0;
    padding: 0; 
   
}
body{
    min-width: 320px;
    max-width: 1024px;
    margin: 0 auto;
}

a{
   color: #666;
    text-decoration: none;
}

ul,ol{
    list-style-type: none;
}

  
$mediaNum:15;

@media screen and (min-width:320px){
    html{
        font-size:(320px/$mediaNum);
    }
}

@media screen and (min-width:375px){
    html{
        font-size: (375px/$mediaNum);
    }
}

@media screen and (min-width:414px){
    html{
        font-size:(414px/$mediaNum);
    }
}

@media screen and (min-width:640px){
    html{
        font-size: (640px/$mediaNum);
    }
}

@media screen and (min-width:750px){
    html{
        font-size:(750px/$mediaNum);
    }
}

@media screen and (min-width:980px){
    html{
        font-size: (980px/$mediaNum);
    }
}

@media screen and (min-width:1024px){
    html{
        font-size: (1024px/$mediaNum);
    }
}
